if field_name not in all_required_field_names:
                if field_name in extra:
                    raise ValueError(f"Found {field_name} supplied twice.")
                logger.warning(
                    f"""{field_name} was transfered to model_kwargs.
                    Please confirm that {field_name} is what you intended."""
                )
                extra[field_name] = values.pop(field_name)
        values["model_kwargs"] = extra
        return values
    @root_validator()
    def validate_environment(cls, values: Dict) -> Dict:
        """Validate that api key and python package exists in environment."""
        banana_api_key = get_from_dict_or_env(
            values, "banana_api_key", "BANANA_API_KEY"
        )
        values["banana_api_key"] = banana_api_key
        return values
    @property
    def _identifying_params(self) -> Mapping[str, Any]:
        """Get the identifying parameters."""
        return {
            **{"model_key": self.model_key},
            **{"model_kwargs": self.model_kwargs},
        }
    @property
    def _llm_type(self) -> str:
        """Return type of llm."""
        return "banana"
    def _call(self, prompt: str, stop: Optional[List[str]] = None) -> str:
        """Call to Banana endpoint."""
        try:
            import banana_dev as banana
        except ImportError:
            raise ValueError(
                "Could not import banana-dev python package. "
                "Please install it with `pip install banana-dev`."
            )
        params = self.model_kwargs or {}
        api_key = self.banana_api_key
        model_key = self.model_key
        model_inputs = {
            # a json specific to your model.
            "prompt": prompt,
            **params,